1. The signal generator is small in size, has many functions, easy to operate and easy to carry.2. The key layout is reasonable, all functions have independent corresponding keys, easy to operate.3. Built-in battery, low power consumption, long standby time.Features:Measure voltage, resistance, capacitance, current, etc.Large screen, high contrast, full symbol display clearly.With a backlight function, suitable for operation under dark environment.Turn off automatically several minutes of non-use to save energy.Easy to operate, high precision,Data hold function , easier to read the measurement result.Specifications:Type: RM777AC Current: 99.99uA/999.9uA/9.999mA/99.99mA/9.999A/999.9mAIs Smart Device: noAC Voltage: 9.999mV/99.99mV/999.9mV/9.999V/99.99V/750.0VMeasuring Resistance Range: 99.99/999.9/9.999k/99.99k/999.9k/9.999M/99.99MOperating Mode: automatic / manualDisplay Type: Digital DisplayCurrent: 99.99uA/999.9uA/9.999mA/99.99mA/9.999A/999.9mAVoltage: 9.999mV/99.99mV/999.9mV/9.999V/99.99V/999.9VMeasuring Capacitance Range: 9.999nF/99.99nF/999.9nF/9.999F/99.99F/999.9F/9.999mFOperating Temperature: 0 - 40 Temperature Measuring Range: -20 - 1000 CFrequency Measuring Range: 99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/5.000MHzItem size: 147 * 76 * 37mmPackage size: 200 * 110 * 50mmPackage weight: 370gPacking List:1 * Multimeter1 * English Manual1 * Electronic Probe